57145777460 has 24 divisors (see below), whose sum is σ = 125223791616. Its totient is φ = 21864471200.

The previous prime is 57145777459. The next prime is 57145777463. The reversal of 57145777460 is 6477754175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57145777463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62114516 + ... + 62115435.

It is an arithmetic number, because the mean of its divisors is an integer number (5217657984).

Almost surely, 2^57145777460 is an apocalyptic number.

It is an amenable number.

57145777460 is an abundant number, since it is smaller than the sum of its proper divisors (68078014156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57145777460 is a wasteful number, since it uses less digits than its factorization.

57145777460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124229983 (or 124229981 counting only the distinct ones).

The product of its (nonzero) digits is 5762400, while the sum is 53.

The spelling of 57145777460 in words is "fifty-seven billion, one hundred forty-five million, seven hundred seventy-seven thousand, four hundred sixty".